Construction of concrete floorings and non-sonorous ceilings



I L. CHRISTIN. CONSTRUCTION OF CONCRETE FLOORINGS AND NON-SONOROUS CEILINGS.

APPLICATION FILED MAY 3, 1918. June 15 2 SHhEIS-SHhE'I I.

L. CHRISTIN.

cousmucnou 0F CONCRETE FLOORINGS AND now-souoaous'cnuues APPLICATION FILED MAY3.1918.

Patented June 15, 1920.

2 SHhETSSHEET 2.

UNITED STATES" LO'UIS CHRISTIN, OF GENEVA, SWITZERLAND.

CONSTRUCTION OF CQNCBETE FLOORIN GS AND NON-SONOROUS CEILINGS.

Application filed May 3, 4918. Serial No. 232,396.

To all whom it may concern:

Be it known that I, LoUIs CHRISTIN, manufacturer, a citizen of Switzerland, residing at Geneva, Canton of Geneva, in the Confederation of Switzerland, have invented certain new and useful Improvements in and Relating to the Construction of Concrete Floorings and Non- Sonorous Ceilings, of which the following is a specification.

This invention relates to concrete floor construction and. particularly to that form of construction in which the beams employed are separately molded and set in place and then by the use of a suitable form, the floor'sections or slabs are poured and allowed to set to complete the structure. The object of the invention being to so associate the. beams and floor slabs to make the latter immovable relatively to the form, and the invention will be hereinafter more particularly in conjunction with the accompanying drawings in which:

Figure 1 is a perspective cross section illustrating one form of the invention.

Fig. 2 is a similar view illustrating another form of'the inventlon, and

Fig. 3 is also a similar View showing a. modified forni of the invention as -illustrated in Fig. 1.

Referring to the drawing and particu-. larly to Fig. 1, the floor construction made 1 in accordance with my invention includes aseries/of beams 10 which are molded or otherwise formed and set in positionfor use. In each of these beams, there is a series of transverse holes 11, and in similar positions in the sides thereof adjacent the upper edge, there are also series of recesses.-

indicated at 12 and 13. 14 represents the floor structure which is poured by means of a suitable frame so as to form a substantially integral structure with the beams, fitting into the recesses 12 and 13 so that the floor and the beams are immovable relatively to one another. The frame into which the floor is poured may be supported upon pins 16 passed through the transverse holes 11 to support the form, which as illustrated in this figure, may include longitudinal string pieces 15 which are supported upon the pins 16 and carry the planks 17 which completes the form. Also as illustrated, these planks 17 are tapered at the edges as indicated at 18 so that the same will give the under surface of the floor an arch whatsoever.

construction. As will also be noted, the planks 17 are slightly less in width and the distance between the beams 10 so that each plank may be readily removed.

Referring to Fig. 2, it will be understood that instead of. employing the recesses '12 Snetification of Letters Patent. Patnted J 15,1920 7 and 13 in the sides of the beams, the beams l 10 may be provided in their opposite sides with projections 19 havingintervening recesses 20, thepurpose of course being the same as providing the recesses. 12 and 13 as shown In Fig. 1 of the drawing. Alsov as shown in Fig. 2,'the beams 10 may be.

provided with suitable reinforcing bars in dicated at 21. In this'foifm of the invention, I have also shown the manner of constructing a non-sonorous ceiling in conjunction wlth the ImP IOVGd'flOOI structure, but this I I form of ceiling is no part of my present in vention. In the construction of the ceiling, each beam 10 is provided in spaced positrons with nails 22 extending appreciable distances from the under side of the rail and suitably fixed in position therein. .It will be understood of course that these nails may be molded in the beams in any manner As illustrated in Fig. 2, se-

cured on and extending between the nails 22 there is a wire 23- running beneath each beam. Oin this. wire 23 reeds or equivalent members 25 are supported in closely associated positions,-? and above the reeds and beneath each beam there is also a wire 24 connected to andextending between the nails 22 so that the reeds25 are maintained in position between the wires 23 and 24:; To these reeds, plaster is applied for the formation of the ceiling. Furthermore as will be understood in 'someinstances, the wire 24 may be dispensed with and the reeds held beams 10.

i I immediately beneath the lower edges of the By reference to Fig. 3, the beams 10 are indicated as resting in place upon a wall 26. These beams are in all respects the same as those hereinbefore described in connection with the form'of the invention shown in Fig. 1, having the transverse holes 11 and the spaced recesses 12 and 13 in similar position in the sides of the beams adj acent the top thereof. In this form of floor construction however, associated with the beams, I also employ a form of slab or block indicated at 27. These are also formed before placed in the floor structure.

Each slab preferably comprises a rectangu lar body in which in the opposite edges there are spaced recesses 28 preferably corresponding in position with the recesses 12 and 13 in the beams with which the slabs are to be associated in a floor structure. Also in these slabs 27 I prefer to employ reinforcing staples or other reinforcing 'members as indicated at 29. In the use ,of the beams and slabs as indicated in Fig. 3, af ter the beams have been set and secured in position, the longitudinal stringers are placedon the pins 16 to support the slabs 17 which are placed between the beams 10 in such positions preferably, that the recesses 28 in the sides of the slabs are in juxtaposed positions with the recesses in the sides of the beams and so placed, that the reinforcing staples or other members 29 preferably extend over the tops of the beams 10 and may or may not be in contact therewith. With the parts thus assembled, the section of the floor indicated at 30 is poured be tween the beams 10 and the, adjacent parts of the slabs 27 so as to form a filling and complete the structure. In the use of these slabs as will be apparent, and as indicated in Figs. 3, it is not necessary to have the beams equally spaced, and in order to ob viate the precisely equal spacing of the beams, is one of the objects of using the invention in this form.

I claim as my invention:

In a concrete floor structure, a plurality of spaced preformed beams each having a series of projections in its sides adjacent the top thereof, a plurality of slabs each having spaced recesses inits opposite edges and adapted to fit between predetermined beams, and floor sections molded over the top of the beams and into the recesses in the beams and slabs whereby the same are united and slabs of the same width may be employed with beams unequally spaced.

In testimony whereof I have aflixed my signature in presence of two witnesses.

LOUIS CHRISTIN. Witnesses:

Ron. on VVURTEMBERG, LOUIS M. MUNIE. 

